Finding the Fourth Proportional to 2,104.43, 3,158.55 and 1,065.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.43 : 3,158.55 = 1,065.15 : x
2. Step 2: Convert to fraction form
   2,104.43/3,158.55 = 1,065.15/x
3. Step 3: Cross multiply
   2,104.43x = 3,158.55 × 1,065.15
4. Step 4: Simplify right side
   2,104.43x = 3,364,329.53
5. Step 5: Solve for x
   x = 3,364,329.53/2,104.43
6. Step 6: Final answer
   x = 1,598.69